TM 5-3810-288-12
SETTING BOOM ANGLE
FOR HOISTING OPERATION WHEN CRANE BOOM IS USED, POSITION BOOM AT PROPER ANGLE FOR THE
LOAD AND WORKING CONDITIONS. PULL BOOM HOIST LEVER TO RAISE OR PUSH TO LOWER UNTIL BOOM
INDICATOR POINTS TO DESIRED ANGLE. MOVE LEVER TO NEUTRAL AND BOOM HOIST BRAKE WILL HOLD
BOOM. SET BOOM HOIST PAWL.
LIFTING THE LOAD (HOISTING)
ATTACH HOOK BLOCK TO LOAD. RELEASE ONE DRUM BRAKE WHILE PULLING ONE DRUM LEVER. HOIST TO
DESIRED HEIGHT, APPLY BRAKE, AND MOVE LEVER TO NEUTRAL. SET PAWL TO PREVENT LOAD FROM
FALLING IF LOAD IS TO REMAIN SUSPENDED.
SWINGING
KEEP DRUM BRAKE ON WHILE SWINGING. PULL SWING CLUTCH LEVER TO SWING TO RIGHT, PUSH TO
SWING TO LEFT. ENGAGE SLOWLY SO SWING WILL BE SMOOTH. TO STOP SWING, ENGAGE LEVER IN
OPPOSITE SWING POSITION GENTLY. SWINGING AND HOISTING CAN BE DONE SIMULTANEOUSLY. ENGAGE
THE SWING BRAKE LEVER TO KEEP CAB FROM DRIFTING WHEN ACCURATE SPOTTING IS REQUIRED.
Figure 1-40. Crane operation and control positions (Sheet 1 of2)
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